V2G could deliver 15 times more value than one-way managed EV charging: report

Electric vehicles that can send power back to the grid, not just draw it, could become a much bigger deal for homeowners in the years ahead. A new study from the energy consultancy E3, commissioned by General Motors, found that this two-way charging setup, known as vehicle-to-grid or V2G, could deliver five to 15 times more value than the one-way "managed charging" programs many utilities already offer, where your EV charges on a schedule that avoids peak demand. Nationwide, V2G's potential value could reach about $7 billion by 2030.

Only some EVs sold today can do this, including models like the Kia EV9, Hyundai Ioniq 5, and the redesigned Nissan Leaf. GM says it already has 250,000 bidirectional-capable vehicles on the road and plans to build the feature into all its future EVs. The payoff varies a lot by region: in high-demand areas like California, downstate New York, Texas, and the Pacific Northwest, a V2G-enabled vehicle could be worth $1,700 to $2,750 a year to the grid. In the Southeast, the value is lower, around $700 a year, but still beats what one-way managed charging earns anywhere in the country.

For now, the bigger hurdle isn't the cars, it's the rules. The report points to outdated utility tariffs and pilot program limits as the main reasons this value isn't being captured yet. If you're shopping for an EV or already own a bidirectional-capable one, it may be worth checking whether your utility offers a V2G or managed-charging program.